Results 131 to 140 of about 127,524 (304)
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Additive local spectrum compressors
, 2011 Let L(X) be the algebra of all bounded linear operators on an infinite dimensional complex Banach space X. We characterize additive continuous maps from L(X) onto itself which compress the local spectrum and the convexified local spectrum at a nonzero ...
M. Bendaoud +3 more
core +1 more source
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source
, 2017 Conformational energies are calculated for the glycyl and alanyl dipeptides using four different molecular mechanical models: (1) the Cornell et al.
WD Cornell, JW Caldwell, PA Kollman
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The human gut microbiome across the life course
FEBS Letters, EarlyView.Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero +4 more
wiley +1 more source
Spectrum-preserving additive maps
, 1991 Let X and Y be complex Banach spaces. We show that a spectrum-preserving surjective additive map Φ from B(X) to B(Y) is either of the form Φ(F)=ATA-1 for a linear isomorphism A of X onto Y or of the form Φ(T)=BT∗B-1 for a linear isomorphism B of X∗ onto ...
Omladič, Matjaž, Šemrl, Peter
core +1 more source
FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
Ti6Al4V-0.72H on the Establishment of Flow Behavior and the Analysis of Hot Processing Maps
CrystalsSignificant columnar grains usually occur in the metallurgical microstructure of laser additive manufacturing, and plastic deformation introduced into additive manufacturing can significantly refine grain size.
Jian-Hua Sun +5 more
doaj +1 more source
Commuting additive maps on tensor products of matrix algebras / Wong Jian Yong
, 2021 Let k ⩾ 1 and n1, . . . , nk ⩾ 2 be integers. Let F be a field and letMni be the algebra of ni × ni matrices over F for i = 1, . . . , k. Let ⊗ki=1Mni be the tensor product of Mn1 , . . . ,Mnk .
Wong , Jian Yong
core
On subadditive functions and ψ-additive mappings
Open Mathematics, 2003 Abstract In [4], assuming among others subadditivity and submultiplicavity of a function ψ: [0, ∞)→[0, ∞), the authors proved a Hyers-Ulam type stability theorem for “ψ-additive” mappings of a normed space into a normed space. In this note we show that the assumed conditions of the function ψ imply that ψ=0 and, consequently, every “ψ ...
openaire +2 more sources